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 Post subject: Wood drying process
PostPosted: Sun Jul 07, 2013 4:56 am 
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Mahogany
Mahogany

Joined: Wed Apr 18, 2012 5:14 am
Posts: 63
First name: Gorjan
Last Name: Stojanovski
City: Skopje
Zip/Postal Code: 1000
Country: Macedonia
Focus: Build
Status: Amateur
From my research online I could tell that PRS guitars is one of the companies that pays a great deal of attention to the drying process. When he speaks on his video blog Paul talks about drying the wood to the point when the resins crystallize, and than re-hydrating it to 40-45%. I was planning on making a small DIY kiln (or hot box) where I can store my wood (the type that resembles a closet or a cabinet, well insulated and has a light bulb as a heat source). My question is how can I tell if the resins have crystallized or not? what would be a time-frame for me to be sure?

Gorjan


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 Post subject: Re: Wood drying process
PostPosted: Sun Jul 07, 2013 12:38 pm 
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Walnut
Walnut

Joined: Thu Jan 07, 2010 9:04 am
Posts: 36
First name: Philip
Last Name: Davies
State: Herts
Country: UK
viewtopic.php?f=10101&t=35707

viewtopic.php?f=10101&t=22709

The object is not to dry the wood by this process, but to take already dried seasoned stable wood and further process by baking at 200 - 212°F to drive the moisture content down to zero (which crystallizes the resins), then re-acclimatise back to 8% moisture content.

The first link tells you all you need to know (and more) about why. The second link is to JJ Donohue's shop built cooker.


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 Post subject: Re: Wood drying process
PostPosted: Sun Jul 07, 2013 2:26 pm 
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Mahogany
Mahogany

Joined: Wed Apr 18, 2012 5:14 am
Posts: 63
First name: Gorjan
Last Name: Stojanovski
City: Skopje
Zip/Postal Code: 1000
Country: Macedonia
Focus: Build
Status: Amateur
thank you very much :)


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 Post subject: Re: Wood drying process
PostPosted: Mon Jul 08, 2013 9:26 am 
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Cocobolo
Cocobolo

Joined: Thu Jul 26, 2007 11:19 pm
Posts: 103
Location: Malaysia
i used microwave oven


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 Post subject: Re: Wood drying process
PostPosted: Mon Jul 08, 2013 10:03 am 
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Contributing Member
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Joined: Fri Jul 10, 2009 4:44 am
Posts: 5588
First name: colin
Last Name: north
Country: Scotland.
Focus: Build
Status: Semi-pro
jeffreyyong wrote:
i used microwave oven

Must be a large one. Commerial?
What's the recipe? Do you vary for different sizes/woods? Do you use for hardwoods/softwoods?

_________________
The name catgut is confusing. There are two explanations for the mix up.

Catgut is an abbreviation of the word cattle gut. Gut strings are made from sheep or goat intestines, in the past even from horse, mule or donkey intestines.

Otherwise it could be from the word kitgut or kitstring. Kit meant fiddle, not kitten.


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 Post subject: Re: Wood drying process
PostPosted: Mon Jul 08, 2013 11:17 am 
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Contributing Member
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Joined: Sat Sep 08, 2012 9:45 am
Posts: 142
First name: David
Last Name: Eddy
City: Mandeville
State: La
Zip/Postal Code: 70448
Country: USA
Focus: Build
Status: Amateur
I built a small locker in my workshop with a floodlight as a heat source. The temperature in the closet gets up to about 175° with 0% moisture! Then I bring the wood out and acclimate the wood to 8%. I've done this with many other projects besides guitar making! Be sure to acclimate your wood back to 8% because it will swell up! Not good! oops_sign


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 Post subject: Re: Wood drying process
PostPosted: Tue Jul 09, 2013 7:55 am 
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Cocobolo
Cocobolo

Joined: Thu Jul 26, 2007 11:19 pm
Posts: 103
Location: Malaysia
A friend from Spain came by my workshop and I show him how to make one, and he went home and he DID it!
Microwave dry the wood from inside out.


You do not have the required permissions to view the files attached to this post.


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 Post subject: Re: Wood drying process
PostPosted: Tue Jul 09, 2013 10:35 am 
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Contributing Member
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Joined: Sat Sep 08, 2012 9:45 am
Posts: 142
First name: David
Last Name: Eddy
City: Mandeville
State: La
Zip/Postal Code: 70448
Country: USA
Focus: Build
Status: Amateur
Cool!!!!!!


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